Reland "Reland "Update stylelint to 14.0.1""
This reverts commit 2b4a9df2d922bb9d183fe2f816da40dda2e87790.
Reason for revert: subsequent presubmit uploads should be fixed now.
Original change's description:
> Revert "Reland "Update stylelint to 14.0.1""
>
> This reverts commit f2ea2c940dd62b3295047e03959c89c237e216c8.
>
> Reason for revert: https://ci.chromium.org/ui/p/devtools-frontend/builders/try/dtf_presubmit_linux/b8831129368825517985/overview
>
> Original change's description:
> > Reland "Update stylelint to 14.0.1"
> >
> > This reverts commit 6c0f161c95acd70706aeed4e1167ab1c28f88eee.
> >
> > Reason for revert: the prerequisite CL (https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3259703) has landed
> >
> > Original change's description:
> > > Revert "Update stylelint to 14.0.1"
> > >
> > > This reverts commit 1e08ee816bab192a7d295d2f457be97bd88c09c1.
> > >
> > > Reason for revert: tree is closed due to errors https://ci.chromium.org/ui/p/devtools-frontend/builders/ci/Stand-alone%20Linux/8169/overview
> > >
> > > Original change's description:
> > > > Update stylelint to 14.0.1
> > > >
> > > > This also upgrades PostCSS to 8.3.11.
> > > >
> > > > DISABLE_THIRD_PARTY_CHECK=Updating Stylelint configuration
> > > > R=szuend@chromium.org
> > > >
> > > > Bug: none
> > > > Change-Id: I606540b03509d7c6e73f3d490327cd4174e03d31
> > > > Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3259541
> > > > Reviewed-by: Simon Zünd <szuend@chromium.org>
> > > > Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
> > >
> > > Bug: none
> > > Change-Id: Icb1c02b41dbccc3b4fc5760f5dd0b78eca078b61
> > > No-Presubmit: true
> > > No-Tree-Checks: true
> > > No-Try: true
> > > Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3263399
> > > Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> > > Owners-Override: Alex Rudenko <alexrudenko@chromium.org>
> > > Commit-Queue: Alex Rudenko <alexrudenko@chromium.org>
> >
> > DISABLE_THIRD_PARTY_CHECK=Updating Stylelint configuration
> >
> > Bug: none
> > Change-Id: If132a67ee4253d27114caedd66c5ee61c774a6c7
> > Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3264206
> > Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
> > Reviewed-by: Simon Zünd <szuend@chromium.org>
> > Reviewed-by: Alex Rudenko <alexrudenko@chromium.org>
>
> Bug: none
> Change-Id: Idc6c9f5cc1e225c752799461eb0344e94b4ad1e5
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3264222
> Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org>
> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
DISABLE_THIRD_PARTY_CHECK=Updating Stylelint configuration
Bug: none
Change-Id: I609941d48b46bfcf454b03dcc75a76d460fbe674
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3264223
Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
diff --git a/node_modules/source-map-js/lib/array-set.js b/node_modules/source-map-js/lib/array-set.js
new file mode 100644
index 0000000..fbd5c81
--- /dev/null
+++ b/node_modules/source-map-js/lib/array-set.js
@@ -0,0 +1,121 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var util = require('./util');
+var has = Object.prototype.hasOwnProperty;
+var hasNativeMap = typeof Map !== "undefined";
+
+/**
+ * A data structure which is a combination of an array and a set. Adding a new
+ * member is O(1), testing for membership is O(1), and finding the index of an
+ * element is O(1). Removing elements from the set is not supported. Only
+ * strings are supported for membership.
+ */
+function ArraySet() {
+ this._array = [];
+ this._set = hasNativeMap ? new Map() : Object.create(null);
+}
+
+/**
+ * Static method for creating ArraySet instances from an existing array.
+ */
+ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
+ var set = new ArraySet();
+ for (var i = 0, len = aArray.length; i < len; i++) {
+ set.add(aArray[i], aAllowDuplicates);
+ }
+ return set;
+};
+
+/**
+ * Return how many unique items are in this ArraySet. If duplicates have been
+ * added, than those do not count towards the size.
+ *
+ * @returns Number
+ */
+ArraySet.prototype.size = function ArraySet_size() {
+ return hasNativeMap ? this._set.size : Object.getOwnPropertyNames(this._set).length;
+};
+
+/**
+ * Add the given string to this set.
+ *
+ * @param String aStr
+ */
+ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
+ var sStr = hasNativeMap ? aStr : util.toSetString(aStr);
+ var isDuplicate = hasNativeMap ? this.has(aStr) : has.call(this._set, sStr);
+ var idx = this._array.length;
+ if (!isDuplicate || aAllowDuplicates) {
+ this._array.push(aStr);
+ }
+ if (!isDuplicate) {
+ if (hasNativeMap) {
+ this._set.set(aStr, idx);
+ } else {
+ this._set[sStr] = idx;
+ }
+ }
+};
+
+/**
+ * Is the given string a member of this set?
+ *
+ * @param String aStr
+ */
+ArraySet.prototype.has = function ArraySet_has(aStr) {
+ if (hasNativeMap) {
+ return this._set.has(aStr);
+ } else {
+ var sStr = util.toSetString(aStr);
+ return has.call(this._set, sStr);
+ }
+};
+
+/**
+ * What is the index of the given string in the array?
+ *
+ * @param String aStr
+ */
+ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
+ if (hasNativeMap) {
+ var idx = this._set.get(aStr);
+ if (idx >= 0) {
+ return idx;
+ }
+ } else {
+ var sStr = util.toSetString(aStr);
+ if (has.call(this._set, sStr)) {
+ return this._set[sStr];
+ }
+ }
+
+ throw new Error('"' + aStr + '" is not in the set.');
+};
+
+/**
+ * What is the element at the given index?
+ *
+ * @param Number aIdx
+ */
+ArraySet.prototype.at = function ArraySet_at(aIdx) {
+ if (aIdx >= 0 && aIdx < this._array.length) {
+ return this._array[aIdx];
+ }
+ throw new Error('No element indexed by ' + aIdx);
+};
+
+/**
+ * Returns the array representation of this set (which has the proper indices
+ * indicated by indexOf). Note that this is a copy of the internal array used
+ * for storing the members so that no one can mess with internal state.
+ */
+ArraySet.prototype.toArray = function ArraySet_toArray() {
+ return this._array.slice();
+};
+
+exports.ArraySet = ArraySet;
diff --git a/node_modules/source-map-js/lib/base64-vlq.js b/node_modules/source-map-js/lib/base64-vlq.js
new file mode 100644
index 0000000..612b404
--- /dev/null
+++ b/node_modules/source-map-js/lib/base64-vlq.js
@@ -0,0 +1,140 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ *
+ * Based on the Base 64 VLQ implementation in Closure Compiler:
+ * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
+ *
+ * Copyright 2011 The Closure Compiler Authors. All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+var base64 = require('./base64');
+
+// A single base 64 digit can contain 6 bits of data. For the base 64 variable
+// length quantities we use in the source map spec, the first bit is the sign,
+// the next four bits are the actual value, and the 6th bit is the
+// continuation bit. The continuation bit tells us whether there are more
+// digits in this value following this digit.
+//
+// Continuation
+// | Sign
+// | |
+// V V
+// 101011
+
+var VLQ_BASE_SHIFT = 5;
+
+// binary: 100000
+var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
+
+// binary: 011111
+var VLQ_BASE_MASK = VLQ_BASE - 1;
+
+// binary: 100000
+var VLQ_CONTINUATION_BIT = VLQ_BASE;
+
+/**
+ * Converts from a two-complement value to a value where the sign bit is
+ * placed in the least significant bit. For example, as decimals:
+ * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
+ * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
+ */
+function toVLQSigned(aValue) {
+ return aValue < 0
+ ? ((-aValue) << 1) + 1
+ : (aValue << 1) + 0;
+}
+
+/**
+ * Converts to a two-complement value from a value where the sign bit is
+ * placed in the least significant bit. For example, as decimals:
+ * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1
+ * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2
+ */
+function fromVLQSigned(aValue) {
+ var isNegative = (aValue & 1) === 1;
+ var shifted = aValue >> 1;
+ return isNegative
+ ? -shifted
+ : shifted;
+}
+
+/**
+ * Returns the base 64 VLQ encoded value.
+ */
+exports.encode = function base64VLQ_encode(aValue) {
+ var encoded = "";
+ var digit;
+
+ var vlq = toVLQSigned(aValue);
+
+ do {
+ digit = vlq & VLQ_BASE_MASK;
+ vlq >>>= VLQ_BASE_SHIFT;
+ if (vlq > 0) {
+ // There are still more digits in this value, so we must make sure the
+ // continuation bit is marked.
+ digit |= VLQ_CONTINUATION_BIT;
+ }
+ encoded += base64.encode(digit);
+ } while (vlq > 0);
+
+ return encoded;
+};
+
+/**
+ * Decodes the next base 64 VLQ value from the given string and returns the
+ * value and the rest of the string via the out parameter.
+ */
+exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
+ var strLen = aStr.length;
+ var result = 0;
+ var shift = 0;
+ var continuation, digit;
+
+ do {
+ if (aIndex >= strLen) {
+ throw new Error("Expected more digits in base 64 VLQ value.");
+ }
+
+ digit = base64.decode(aStr.charCodeAt(aIndex++));
+ if (digit === -1) {
+ throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
+ }
+
+ continuation = !!(digit & VLQ_CONTINUATION_BIT);
+ digit &= VLQ_BASE_MASK;
+ result = result + (digit << shift);
+ shift += VLQ_BASE_SHIFT;
+ } while (continuation);
+
+ aOutParam.value = fromVLQSigned(result);
+ aOutParam.rest = aIndex;
+};
diff --git a/node_modules/source-map-js/lib/base64.js b/node_modules/source-map-js/lib/base64.js
new file mode 100644
index 0000000..8aa86b3
--- /dev/null
+++ b/node_modules/source-map-js/lib/base64.js
@@ -0,0 +1,67 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');
+
+/**
+ * Encode an integer in the range of 0 to 63 to a single base 64 digit.
+ */
+exports.encode = function (number) {
+ if (0 <= number && number < intToCharMap.length) {
+ return intToCharMap[number];
+ }
+ throw new TypeError("Must be between 0 and 63: " + number);
+};
+
+/**
+ * Decode a single base 64 character code digit to an integer. Returns -1 on
+ * failure.
+ */
+exports.decode = function (charCode) {
+ var bigA = 65; // 'A'
+ var bigZ = 90; // 'Z'
+
+ var littleA = 97; // 'a'
+ var littleZ = 122; // 'z'
+
+ var zero = 48; // '0'
+ var nine = 57; // '9'
+
+ var plus = 43; // '+'
+ var slash = 47; // '/'
+
+ var littleOffset = 26;
+ var numberOffset = 52;
+
+ // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
+ if (bigA <= charCode && charCode <= bigZ) {
+ return (charCode - bigA);
+ }
+
+ // 26 - 51: abcdefghijklmnopqrstuvwxyz
+ if (littleA <= charCode && charCode <= littleZ) {
+ return (charCode - littleA + littleOffset);
+ }
+
+ // 52 - 61: 0123456789
+ if (zero <= charCode && charCode <= nine) {
+ return (charCode - zero + numberOffset);
+ }
+
+ // 62: +
+ if (charCode == plus) {
+ return 62;
+ }
+
+ // 63: /
+ if (charCode == slash) {
+ return 63;
+ }
+
+ // Invalid base64 digit.
+ return -1;
+};
diff --git a/node_modules/source-map-js/lib/binary-search.js b/node_modules/source-map-js/lib/binary-search.js
new file mode 100644
index 0000000..010ac94
--- /dev/null
+++ b/node_modules/source-map-js/lib/binary-search.js
@@ -0,0 +1,111 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+exports.GREATEST_LOWER_BOUND = 1;
+exports.LEAST_UPPER_BOUND = 2;
+
+/**
+ * Recursive implementation of binary search.
+ *
+ * @param aLow Indices here and lower do not contain the needle.
+ * @param aHigh Indices here and higher do not contain the needle.
+ * @param aNeedle The element being searched for.
+ * @param aHaystack The non-empty array being searched.
+ * @param aCompare Function which takes two elements and returns -1, 0, or 1.
+ * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
+ * 'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
+ * closest element that is smaller than or greater than the one we are
+ * searching for, respectively, if the exact element cannot be found.
+ */
+function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
+ // This function terminates when one of the following is true:
+ //
+ // 1. We find the exact element we are looking for.
+ //
+ // 2. We did not find the exact element, but we can return the index of
+ // the next-closest element.
+ //
+ // 3. We did not find the exact element, and there is no next-closest
+ // element than the one we are searching for, so we return -1.
+ var mid = Math.floor((aHigh - aLow) / 2) + aLow;
+ var cmp = aCompare(aNeedle, aHaystack[mid], true);
+ if (cmp === 0) {
+ // Found the element we are looking for.
+ return mid;
+ }
+ else if (cmp > 0) {
+ // Our needle is greater than aHaystack[mid].
+ if (aHigh - mid > 1) {
+ // The element is in the upper half.
+ return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
+ }
+
+ // The exact needle element was not found in this haystack. Determine if
+ // we are in termination case (3) or (2) and return the appropriate thing.
+ if (aBias == exports.LEAST_UPPER_BOUND) {
+ return aHigh < aHaystack.length ? aHigh : -1;
+ } else {
+ return mid;
+ }
+ }
+ else {
+ // Our needle is less than aHaystack[mid].
+ if (mid - aLow > 1) {
+ // The element is in the lower half.
+ return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
+ }
+
+ // we are in termination case (3) or (2) and return the appropriate thing.
+ if (aBias == exports.LEAST_UPPER_BOUND) {
+ return mid;
+ } else {
+ return aLow < 0 ? -1 : aLow;
+ }
+ }
+}
+
+/**
+ * This is an implementation of binary search which will always try and return
+ * the index of the closest element if there is no exact hit. This is because
+ * mappings between original and generated line/col pairs are single points,
+ * and there is an implicit region between each of them, so a miss just means
+ * that you aren't on the very start of a region.
+ *
+ * @param aNeedle The element you are looking for.
+ * @param aHaystack The array that is being searched.
+ * @param aCompare A function which takes the needle and an element in the
+ * array and returns -1, 0, or 1 depending on whether the needle is less
+ * than, equal to, or greater than the element, respectively.
+ * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
+ * 'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
+ * closest element that is smaller than or greater than the one we are
+ * searching for, respectively, if the exact element cannot be found.
+ * Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
+ */
+exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
+ if (aHaystack.length === 0) {
+ return -1;
+ }
+
+ var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
+ aCompare, aBias || exports.GREATEST_LOWER_BOUND);
+ if (index < 0) {
+ return -1;
+ }
+
+ // We have found either the exact element, or the next-closest element than
+ // the one we are searching for. However, there may be more than one such
+ // element. Make sure we always return the smallest of these.
+ while (index - 1 >= 0) {
+ if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
+ break;
+ }
+ --index;
+ }
+
+ return index;
+};
diff --git a/node_modules/source-map-js/lib/mapping-list.js b/node_modules/source-map-js/lib/mapping-list.js
new file mode 100644
index 0000000..06d1274
--- /dev/null
+++ b/node_modules/source-map-js/lib/mapping-list.js
@@ -0,0 +1,79 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2014 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var util = require('./util');
+
+/**
+ * Determine whether mappingB is after mappingA with respect to generated
+ * position.
+ */
+function generatedPositionAfter(mappingA, mappingB) {
+ // Optimized for most common case
+ var lineA = mappingA.generatedLine;
+ var lineB = mappingB.generatedLine;
+ var columnA = mappingA.generatedColumn;
+ var columnB = mappingB.generatedColumn;
+ return lineB > lineA || lineB == lineA && columnB >= columnA ||
+ util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
+}
+
+/**
+ * A data structure to provide a sorted view of accumulated mappings in a
+ * performance conscious manner. It trades a neglibable overhead in general
+ * case for a large speedup in case of mappings being added in order.
+ */
+function MappingList() {
+ this._array = [];
+ this._sorted = true;
+ // Serves as infimum
+ this._last = {generatedLine: -1, generatedColumn: 0};
+}
+
+/**
+ * Iterate through internal items. This method takes the same arguments that
+ * `Array.prototype.forEach` takes.
+ *
+ * NOTE: The order of the mappings is NOT guaranteed.
+ */
+MappingList.prototype.unsortedForEach =
+ function MappingList_forEach(aCallback, aThisArg) {
+ this._array.forEach(aCallback, aThisArg);
+ };
+
+/**
+ * Add the given source mapping.
+ *
+ * @param Object aMapping
+ */
+MappingList.prototype.add = function MappingList_add(aMapping) {
+ if (generatedPositionAfter(this._last, aMapping)) {
+ this._last = aMapping;
+ this._array.push(aMapping);
+ } else {
+ this._sorted = false;
+ this._array.push(aMapping);
+ }
+};
+
+/**
+ * Returns the flat, sorted array of mappings. The mappings are sorted by
+ * generated position.
+ *
+ * WARNING: This method returns internal data without copying, for
+ * performance. The return value must NOT be mutated, and should be treated as
+ * an immutable borrow. If you want to take ownership, you must make your own
+ * copy.
+ */
+MappingList.prototype.toArray = function MappingList_toArray() {
+ if (!this._sorted) {
+ this._array.sort(util.compareByGeneratedPositionsInflated);
+ this._sorted = true;
+ }
+ return this._array;
+};
+
+exports.MappingList = MappingList;
diff --git a/node_modules/source-map-js/lib/quick-sort.js b/node_modules/source-map-js/lib/quick-sort.js
new file mode 100644
index 0000000..23f9eda
--- /dev/null
+++ b/node_modules/source-map-js/lib/quick-sort.js
@@ -0,0 +1,132 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+// It turns out that some (most?) JavaScript engines don't self-host
+// `Array.prototype.sort`. This makes sense because C++ will likely remain
+// faster than JS when doing raw CPU-intensive sorting. However, when using a
+// custom comparator function, calling back and forth between the VM's C++ and
+// JIT'd JS is rather slow *and* loses JIT type information, resulting in
+// worse generated code for the comparator function than would be optimal. In
+// fact, when sorting with a comparator, these costs outweigh the benefits of
+// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
+// a ~3500ms mean speed-up in `bench/bench.html`.
+
+function SortTemplate(comparator) {
+
+/**
+ * Swap the elements indexed by `x` and `y` in the array `ary`.
+ *
+ * @param {Array} ary
+ * The array.
+ * @param {Number} x
+ * The index of the first item.
+ * @param {Number} y
+ * The index of the second item.
+ */
+function swap(ary, x, y) {
+ var temp = ary[x];
+ ary[x] = ary[y];
+ ary[y] = temp;
+}
+
+/**
+ * Returns a random integer within the range `low .. high` inclusive.
+ *
+ * @param {Number} low
+ * The lower bound on the range.
+ * @param {Number} high
+ * The upper bound on the range.
+ */
+function randomIntInRange(low, high) {
+ return Math.round(low + (Math.random() * (high - low)));
+}
+
+/**
+ * The Quick Sort algorithm.
+ *
+ * @param {Array} ary
+ * An array to sort.
+ * @param {function} comparator
+ * Function to use to compare two items.
+ * @param {Number} p
+ * Start index of the array
+ * @param {Number} r
+ * End index of the array
+ */
+function doQuickSort(ary, comparator, p, r) {
+ // If our lower bound is less than our upper bound, we (1) partition the
+ // array into two pieces and (2) recurse on each half. If it is not, this is
+ // the empty array and our base case.
+
+ if (p < r) {
+ // (1) Partitioning.
+ //
+ // The partitioning chooses a pivot between `p` and `r` and moves all
+ // elements that are less than or equal to the pivot to the before it, and
+ // all the elements that are greater than it after it. The effect is that
+ // once partition is done, the pivot is in the exact place it will be when
+ // the array is put in sorted order, and it will not need to be moved
+ // again. This runs in O(n) time.
+
+ // Always choose a random pivot so that an input array which is reverse
+ // sorted does not cause O(n^2) running time.
+ var pivotIndex = randomIntInRange(p, r);
+ var i = p - 1;
+
+ swap(ary, pivotIndex, r);
+ var pivot = ary[r];
+
+ // Immediately after `j` is incremented in this loop, the following hold
+ // true:
+ //
+ // * Every element in `ary[p .. i]` is less than or equal to the pivot.
+ //
+ // * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
+ for (var j = p; j < r; j++) {
+ if (comparator(ary[j], pivot, false) <= 0) {
+ i += 1;
+ swap(ary, i, j);
+ }
+ }
+
+ swap(ary, i + 1, j);
+ var q = i + 1;
+
+ // (2) Recurse on each half.
+
+ doQuickSort(ary, comparator, p, q - 1);
+ doQuickSort(ary, comparator, q + 1, r);
+ }
+}
+
+ return doQuickSort;
+}
+
+function cloneSort(comparator) {
+ let template = SortTemplate.toString();
+ let templateFn = new Function(`return ${template}`)();
+ return templateFn(comparator);
+}
+
+/**
+ * Sort the given array in-place with the given comparator function.
+ *
+ * @param {Array} ary
+ * An array to sort.
+ * @param {function} comparator
+ * Function to use to compare two items.
+ */
+
+let sortCache = new WeakMap();
+exports.quickSort = function (ary, comparator, start = 0) {
+ let doQuickSort = sortCache.get(comparator);
+ if (doQuickSort === void 0) {
+ doQuickSort = cloneSort(comparator);
+ sortCache.set(comparator, doQuickSort);
+ }
+ doQuickSort(ary, comparator, start, ary.length - 1);
+};
diff --git a/node_modules/source-map-js/lib/source-map-consumer.js b/node_modules/source-map-js/lib/source-map-consumer.js
new file mode 100644
index 0000000..17bd8c3
--- /dev/null
+++ b/node_modules/source-map-js/lib/source-map-consumer.js
@@ -0,0 +1,1178 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var util = require('./util');
+var binarySearch = require('./binary-search');
+var ArraySet = require('./array-set').ArraySet;
+var base64VLQ = require('./base64-vlq');
+var quickSort = require('./quick-sort').quickSort;
+
+function SourceMapConsumer(aSourceMap, aSourceMapURL) {
+ var sourceMap = aSourceMap;
+ if (typeof aSourceMap === 'string') {
+ sourceMap = util.parseSourceMapInput(aSourceMap);
+ }
+
+ return sourceMap.sections != null
+ ? new IndexedSourceMapConsumer(sourceMap, aSourceMapURL)
+ : new BasicSourceMapConsumer(sourceMap, aSourceMapURL);
+}
+
+SourceMapConsumer.fromSourceMap = function(aSourceMap, aSourceMapURL) {
+ return BasicSourceMapConsumer.fromSourceMap(aSourceMap, aSourceMapURL);
+}
+
+/**
+ * The version of the source mapping spec that we are consuming.
+ */
+SourceMapConsumer.prototype._version = 3;
+
+// `__generatedMappings` and `__originalMappings` are arrays that hold the
+// parsed mapping coordinates from the source map's "mappings" attribute. They
+// are lazily instantiated, accessed via the `_generatedMappings` and
+// `_originalMappings` getters respectively, and we only parse the mappings
+// and create these arrays once queried for a source location. We jump through
+// these hoops because there can be many thousands of mappings, and parsing
+// them is expensive, so we only want to do it if we must.
+//
+// Each object in the arrays is of the form:
+//
+// {
+// generatedLine: The line number in the generated code,
+// generatedColumn: The column number in the generated code,
+// source: The path to the original source file that generated this
+// chunk of code,
+// originalLine: The line number in the original source that
+// corresponds to this chunk of generated code,
+// originalColumn: The column number in the original source that
+// corresponds to this chunk of generated code,
+// name: The name of the original symbol which generated this chunk of
+// code.
+// }
+//
+// All properties except for `generatedLine` and `generatedColumn` can be
+// `null`.
+//
+// `_generatedMappings` is ordered by the generated positions.
+//
+// `_originalMappings` is ordered by the original positions.
+
+SourceMapConsumer.prototype.__generatedMappings = null;
+Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
+ configurable: true,
+ enumerable: true,
+ get: function () {
+ if (!this.__generatedMappings) {
+ this._parseMappings(this._mappings, this.sourceRoot);
+ }
+
+ return this.__generatedMappings;
+ }
+});
+
+SourceMapConsumer.prototype.__originalMappings = null;
+Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
+ configurable: true,
+ enumerable: true,
+ get: function () {
+ if (!this.__originalMappings) {
+ this._parseMappings(this._mappings, this.sourceRoot);
+ }
+
+ return this.__originalMappings;
+ }
+});
+
+SourceMapConsumer.prototype._charIsMappingSeparator =
+ function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
+ var c = aStr.charAt(index);
+ return c === ";" || c === ",";
+ };
+
+/**
+ * Parse the mappings in a string in to a data structure which we can easily
+ * query (the ordered arrays in the `this.__generatedMappings` and
+ * `this.__originalMappings` properties).
+ */
+SourceMapConsumer.prototype._parseMappings =
+ function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+ throw new Error("Subclasses must implement _parseMappings");
+ };
+
+SourceMapConsumer.GENERATED_ORDER = 1;
+SourceMapConsumer.ORIGINAL_ORDER = 2;
+
+SourceMapConsumer.GREATEST_LOWER_BOUND = 1;
+SourceMapConsumer.LEAST_UPPER_BOUND = 2;
+
+/**
+ * Iterate over each mapping between an original source/line/column and a
+ * generated line/column in this source map.
+ *
+ * @param Function aCallback
+ * The function that is called with each mapping.
+ * @param Object aContext
+ * Optional. If specified, this object will be the value of `this` every
+ * time that `aCallback` is called.
+ * @param aOrder
+ * Either `SourceMapConsumer.GENERATED_ORDER` or
+ * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
+ * iterate over the mappings sorted by the generated file's line/column
+ * order or the original's source/line/column order, respectively. Defaults to
+ * `SourceMapConsumer.GENERATED_ORDER`.
+ */
+SourceMapConsumer.prototype.eachMapping =
+ function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
+ var context = aContext || null;
+ var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
+
+ var mappings;
+ switch (order) {
+ case SourceMapConsumer.GENERATED_ORDER:
+ mappings = this._generatedMappings;
+ break;
+ case SourceMapConsumer.ORIGINAL_ORDER:
+ mappings = this._originalMappings;
+ break;
+ default:
+ throw new Error("Unknown order of iteration.");
+ }
+
+ var sourceRoot = this.sourceRoot;
+ mappings.map(function (mapping) {
+ var source = mapping.source === null ? null : this._sources.at(mapping.source);
+ source = util.computeSourceURL(sourceRoot, source, this._sourceMapURL);
+ return {
+ source: source,
+ generatedLine: mapping.generatedLine,
+ generatedColumn: mapping.generatedColumn,
+ originalLine: mapping.originalLine,
+ originalColumn: mapping.originalColumn,
+ name: mapping.name === null ? null : this._names.at(mapping.name)
+ };
+ }, this).forEach(aCallback, context);
+ };
+
+/**
+ * Returns all generated line and column information for the original source,
+ * line, and column provided. If no column is provided, returns all mappings
+ * corresponding to a either the line we are searching for or the next
+ * closest line that has any mappings. Otherwise, returns all mappings
+ * corresponding to the given line and either the column we are searching for
+ * or the next closest column that has any offsets.
+ *
+ * The only argument is an object with the following properties:
+ *
+ * - source: The filename of the original source.
+ * - line: The line number in the original source. The line number is 1-based.
+ * - column: Optional. the column number in the original source.
+ * The column number is 0-based.
+ *
+ * and an array of objects is returned, each with the following properties:
+ *
+ * - line: The line number in the generated source, or null. The
+ * line number is 1-based.
+ * - column: The column number in the generated source, or null.
+ * The column number is 0-based.
+ */
+SourceMapConsumer.prototype.allGeneratedPositionsFor =
+ function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
+ var line = util.getArg(aArgs, 'line');
+
+ // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
+ // returns the index of the closest mapping less than the needle. By
+ // setting needle.originalColumn to 0, we thus find the last mapping for
+ // the given line, provided such a mapping exists.
+ var needle = {
+ source: util.getArg(aArgs, 'source'),
+ originalLine: line,
+ originalColumn: util.getArg(aArgs, 'column', 0)
+ };
+
+ needle.source = this._findSourceIndex(needle.source);
+ if (needle.source < 0) {
+ return [];
+ }
+
+ var mappings = [];
+
+ var index = this._findMapping(needle,
+ this._originalMappings,
+ "originalLine",
+ "originalColumn",
+ util.compareByOriginalPositions,
+ binarySearch.LEAST_UPPER_BOUND);
+ if (index >= 0) {
+ var mapping = this._originalMappings[index];
+
+ if (aArgs.column === undefined) {
+ var originalLine = mapping.originalLine;
+
+ // Iterate until either we run out of mappings, or we run into
+ // a mapping for a different line than the one we found. Since
+ // mappings are sorted, this is guaranteed to find all mappings for
+ // the line we found.
+ while (mapping && mapping.originalLine === originalLine) {
+ mappings.push({
+ line: util.getArg(mapping, 'generatedLine', null),
+ column: util.getArg(mapping, 'generatedColumn', null),
+ lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
+ });
+
+ mapping = this._originalMappings[++index];
+ }
+ } else {
+ var originalColumn = mapping.originalColumn;
+
+ // Iterate until either we run out of mappings, or we run into
+ // a mapping for a different line than the one we were searching for.
+ // Since mappings are sorted, this is guaranteed to find all mappings for
+ // the line we are searching for.
+ while (mapping &&
+ mapping.originalLine === line &&
+ mapping.originalColumn == originalColumn) {
+ mappings.push({
+ line: util.getArg(mapping, 'generatedLine', null),
+ column: util.getArg(mapping, 'generatedColumn', null),
+ lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
+ });
+
+ mapping = this._originalMappings[++index];
+ }
+ }
+ }
+
+ return mappings;
+ };
+
+exports.SourceMapConsumer = SourceMapConsumer;
+
+/**
+ * A BasicSourceMapConsumer instance represents a parsed source map which we can
+ * query for information about the original file positions by giving it a file
+ * position in the generated source.
+ *
+ * The first parameter is the raw source map (either as a JSON string, or
+ * already parsed to an object). According to the spec, source maps have the
+ * following attributes:
+ *
+ * - version: Which version of the source map spec this map is following.
+ * - sources: An array of URLs to the original source files.
+ * - names: An array of identifiers which can be referrenced by individual mappings.
+ * - sourceRoot: Optional. The URL root from which all sources are relative.
+ * - sourcesContent: Optional. An array of contents of the original source files.
+ * - mappings: A string of base64 VLQs which contain the actual mappings.
+ * - file: Optional. The generated file this source map is associated with.
+ *
+ * Here is an example source map, taken from the source map spec[0]:
+ *
+ * {
+ * version : 3,
+ * file: "out.js",
+ * sourceRoot : "",
+ * sources: ["foo.js", "bar.js"],
+ * names: ["src", "maps", "are", "fun"],
+ * mappings: "AA,AB;;ABCDE;"
+ * }
+ *
+ * The second parameter, if given, is a string whose value is the URL
+ * at which the source map was found. This URL is used to compute the
+ * sources array.
+ *
+ * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
+ */
+function BasicSourceMapConsumer(aSourceMap, aSourceMapURL) {
+ var sourceMap = aSourceMap;
+ if (typeof aSourceMap === 'string') {
+ sourceMap = util.parseSourceMapInput(aSourceMap);
+ }
+
+ var version = util.getArg(sourceMap, 'version');
+ var sources = util.getArg(sourceMap, 'sources');
+ // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
+ // requires the array) to play nice here.
+ var names = util.getArg(sourceMap, 'names', []);
+ var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
+ var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
+ var mappings = util.getArg(sourceMap, 'mappings');
+ var file = util.getArg(sourceMap, 'file', null);
+
+ // Once again, Sass deviates from the spec and supplies the version as a
+ // string rather than a number, so we use loose equality checking here.
+ if (version != this._version) {
+ throw new Error('Unsupported version: ' + version);
+ }
+
+ if (sourceRoot) {
+ sourceRoot = util.normalize(sourceRoot);
+ }
+
+ sources = sources
+ .map(String)
+ // Some source maps produce relative source paths like "./foo.js" instead of
+ // "foo.js". Normalize these first so that future comparisons will succeed.
+ // See bugzil.la/1090768.
+ .map(util.normalize)
+ // Always ensure that absolute sources are internally stored relative to
+ // the source root, if the source root is absolute. Not doing this would
+ // be particularly problematic when the source root is a prefix of the
+ // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
+ .map(function (source) {
+ return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source)
+ ? util.relative(sourceRoot, source)
+ : source;
+ });
+
+ // Pass `true` below to allow duplicate names and sources. While source maps
+ // are intended to be compressed and deduplicated, the TypeScript compiler
+ // sometimes generates source maps with duplicates in them. See Github issue
+ // #72 and bugzil.la/889492.
+ this._names = ArraySet.fromArray(names.map(String), true);
+ this._sources = ArraySet.fromArray(sources, true);
+
+ this._absoluteSources = this._sources.toArray().map(function (s) {
+ return util.computeSourceURL(sourceRoot, s, aSourceMapURL);
+ });
+
+ this.sourceRoot = sourceRoot;
+ this.sourcesContent = sourcesContent;
+ this._mappings = mappings;
+ this._sourceMapURL = aSourceMapURL;
+ this.file = file;
+}
+
+BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
+BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;
+
+/**
+ * Utility function to find the index of a source. Returns -1 if not
+ * found.
+ */
+BasicSourceMapConsumer.prototype._findSourceIndex = function(aSource) {
+ var relativeSource = aSource;
+ if (this.sourceRoot != null) {
+ relativeSource = util.relative(this.sourceRoot, relativeSource);
+ }
+
+ if (this._sources.has(relativeSource)) {
+ return this._sources.indexOf(relativeSource);
+ }
+
+ // Maybe aSource is an absolute URL as returned by |sources|. In
+ // this case we can't simply undo the transform.
+ var i;
+ for (i = 0; i < this._absoluteSources.length; ++i) {
+ if (this._absoluteSources[i] == aSource) {
+ return i;
+ }
+ }
+
+ return -1;
+};
+
+/**
+ * Create a BasicSourceMapConsumer from a SourceMapGenerator.
+ *
+ * @param SourceMapGenerator aSourceMap
+ * The source map that will be consumed.
+ * @param String aSourceMapURL
+ * The URL at which the source map can be found (optional)
+ * @returns BasicSourceMapConsumer
+ */
+BasicSourceMapConsumer.fromSourceMap =
+ function SourceMapConsumer_fromSourceMap(aSourceMap, aSourceMapURL) {
+ var smc = Object.create(BasicSourceMapConsumer.prototype);
+
+ var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
+ var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
+ smc.sourceRoot = aSourceMap._sourceRoot;
+ smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(),
+ smc.sourceRoot);
+ smc.file = aSourceMap._file;
+ smc._sourceMapURL = aSourceMapURL;
+ smc._absoluteSources = smc._sources.toArray().map(function (s) {
+ return util.computeSourceURL(smc.sourceRoot, s, aSourceMapURL);
+ });
+
+ // Because we are modifying the entries (by converting string sources and
+ // names to indices into the sources and names ArraySets), we have to make
+ // a copy of the entry or else bad things happen. Shared mutable state
+ // strikes again! See github issue #191.
+
+ var generatedMappings = aSourceMap._mappings.toArray().slice();
+ var destGeneratedMappings = smc.__generatedMappings = [];
+ var destOriginalMappings = smc.__originalMappings = [];
+
+ for (var i = 0, length = generatedMappings.length; i < length; i++) {
+ var srcMapping = generatedMappings[i];
+ var destMapping = new Mapping;
+ destMapping.generatedLine = srcMapping.generatedLine;
+ destMapping.generatedColumn = srcMapping.generatedColumn;
+
+ if (srcMapping.source) {
+ destMapping.source = sources.indexOf(srcMapping.source);
+ destMapping.originalLine = srcMapping.originalLine;
+ destMapping.originalColumn = srcMapping.originalColumn;
+
+ if (srcMapping.name) {
+ destMapping.name = names.indexOf(srcMapping.name);
+ }
+
+ destOriginalMappings.push(destMapping);
+ }
+
+ destGeneratedMappings.push(destMapping);
+ }
+
+ quickSort(smc.__originalMappings, util.compareByOriginalPositions);
+
+ return smc;
+ };
+
+/**
+ * The version of the source mapping spec that we are consuming.
+ */
+BasicSourceMapConsumer.prototype._version = 3;
+
+/**
+ * The list of original sources.
+ */
+Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
+ get: function () {
+ return this._absoluteSources.slice();
+ }
+});
+
+/**
+ * Provide the JIT with a nice shape / hidden class.
+ */
+function Mapping() {
+ this.generatedLine = 0;
+ this.generatedColumn = 0;
+ this.source = null;
+ this.originalLine = null;
+ this.originalColumn = null;
+ this.name = null;
+}
+
+/**
+ * Parse the mappings in a string in to a data structure which we can easily
+ * query (the ordered arrays in the `this.__generatedMappings` and
+ * `this.__originalMappings` properties).
+ */
+
+const compareGenerated = util.compareByGeneratedPositionsDeflatedNoLine;
+function sortGenerated(array, start) {
+ let l = array.length;
+ let n = array.length - start;
+ if (n <= 1) {
+ return;
+ } else if (n == 2) {
+ let a = array[start];
+ let b = array[start + 1];
+ if (compareGenerated(a, b) > 0) {
+ array[start] = b;
+ array[start + 1] = a;
+ }
+ } else if (n < 20) {
+ for (let i = start; i < l; i++) {
+ for (let j = i; j > start; j--) {
+ let a = array[j - 1];
+ let b = array[j];
+ if (compareGenerated(a, b) <= 0) {
+ break;
+ }
+ array[j - 1] = b;
+ array[j] = a;
+ }
+ }
+ } else {
+ quickSort(array, compareGenerated, start);
+ }
+}
+BasicSourceMapConsumer.prototype._parseMappings =
+ function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+ var generatedLine = 1;
+ var previousGeneratedColumn = 0;
+ var previousOriginalLine = 0;
+ var previousOriginalColumn = 0;
+ var previousSource = 0;
+ var previousName = 0;
+ var length = aStr.length;
+ var index = 0;
+ var cachedSegments = {};
+ var temp = {};
+ var originalMappings = [];
+ var generatedMappings = [];
+ var mapping, str, segment, end, value;
+
+ let subarrayStart = 0;
+ while (index < length) {
+ if (aStr.charAt(index) === ';') {
+ generatedLine++;
+ index++;
+ previousGeneratedColumn = 0;
+
+ sortGenerated(generatedMappings, subarrayStart);
+ subarrayStart = generatedMappings.length;
+ }
+ else if (aStr.charAt(index) === ',') {
+ index++;
+ }
+ else {
+ mapping = new Mapping();
+ mapping.generatedLine = generatedLine;
+
+ for (end = index; end < length; end++) {
+ if (this._charIsMappingSeparator(aStr, end)) {
+ break;
+ }
+ }
+ str = aStr.slice(index, end);
+
+ segment = [];
+ while (index < end) {
+ base64VLQ.decode(aStr, index, temp);
+ value = temp.value;
+ index = temp.rest;
+ segment.push(value);
+ }
+
+ if (segment.length === 2) {
+ throw new Error('Found a source, but no line and column');
+ }
+
+ if (segment.length === 3) {
+ throw new Error('Found a source and line, but no column');
+ }
+
+ // Generated column.
+ mapping.generatedColumn = previousGeneratedColumn + segment[0];
+ previousGeneratedColumn = mapping.generatedColumn;
+
+ if (segment.length > 1) {
+ // Original source.
+ mapping.source = previousSource + segment[1];
+ previousSource += segment[1];
+
+ // Original line.
+ mapping.originalLine = previousOriginalLine + segment[2];
+ previousOriginalLine = mapping.originalLine;
+ // Lines are stored 0-based
+ mapping.originalLine += 1;
+
+ // Original column.
+ mapping.originalColumn = previousOriginalColumn + segment[3];
+ previousOriginalColumn = mapping.originalColumn;
+
+ if (segment.length > 4) {
+ // Original name.
+ mapping.name = previousName + segment[4];
+ previousName += segment[4];
+ }
+ }
+
+ generatedMappings.push(mapping);
+ if (typeof mapping.originalLine === 'number') {
+ let currentSource = mapping.source;
+ while (originalMappings.length <= currentSource) {
+ originalMappings.push(null);
+ }
+ if (originalMappings[currentSource] === null) {
+ originalMappings[currentSource] = [];
+ }
+ originalMappings[currentSource].push(mapping);
+ }
+ }
+ }
+
+ sortGenerated(generatedMappings, subarrayStart);
+ this.__generatedMappings = generatedMappings;
+
+ for (var i = 0; i < originalMappings.length; i++) {
+ if (originalMappings[i] != null) {
+ quickSort(originalMappings[i], util.compareByOriginalPositionsNoSource);
+ }
+ }
+ this.__originalMappings = [].concat(...originalMappings);
+ };
+
+/**
+ * Find the mapping that best matches the hypothetical "needle" mapping that
+ * we are searching for in the given "haystack" of mappings.
+ */
+BasicSourceMapConsumer.prototype._findMapping =
+ function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
+ aColumnName, aComparator, aBias) {
+ // To return the position we are searching for, we must first find the
+ // mapping for the given position and then return the opposite position it
+ // points to. Because the mappings are sorted, we can use binary search to
+ // find the best mapping.
+
+ if (aNeedle[aLineName] <= 0) {
+ throw new TypeError('Line must be greater than or equal to 1, got '
+ + aNeedle[aLineName]);
+ }
+ if (aNeedle[aColumnName] < 0) {
+ throw new TypeError('Column must be greater than or equal to 0, got '
+ + aNeedle[aColumnName]);
+ }
+
+ return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
+ };
+
+/**
+ * Compute the last column for each generated mapping. The last column is
+ * inclusive.
+ */
+BasicSourceMapConsumer.prototype.computeColumnSpans =
+ function SourceMapConsumer_computeColumnSpans() {
+ for (var index = 0; index < this._generatedMappings.length; ++index) {
+ var mapping = this._generatedMappings[index];
+
+ // Mappings do not contain a field for the last generated columnt. We
+ // can come up with an optimistic estimate, however, by assuming that
+ // mappings are contiguous (i.e. given two consecutive mappings, the
+ // first mapping ends where the second one starts).
+ if (index + 1 < this._generatedMappings.length) {
+ var nextMapping = this._generatedMappings[index + 1];
+
+ if (mapping.generatedLine === nextMapping.generatedLine) {
+ mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
+ continue;
+ }
+ }
+
+ // The last mapping for each line spans the entire line.
+ mapping.lastGeneratedColumn = Infinity;
+ }
+ };
+
+/**
+ * Returns the original source, line, and column information for the generated
+ * source's line and column positions provided. The only argument is an object
+ * with the following properties:
+ *
+ * - line: The line number in the generated source. The line number
+ * is 1-based.
+ * - column: The column number in the generated source. The column
+ * number is 0-based.
+ * - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
+ * 'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
+ * closest element that is smaller than or greater than the one we are
+ * searching for, respectively, if the exact element cannot be found.
+ * Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
+ *
+ * and an object is returned with the following properties:
+ *
+ * - source: The original source file, or null.
+ * - line: The line number in the original source, or null. The
+ * line number is 1-based.
+ * - column: The column number in the original source, or null. The
+ * column number is 0-based.
+ * - name: The original identifier, or null.
+ */
+BasicSourceMapConsumer.prototype.originalPositionFor =
+ function SourceMapConsumer_originalPositionFor(aArgs) {
+ var needle = {
+ generatedLine: util.getArg(aArgs, 'line'),
+ generatedColumn: util.getArg(aArgs, 'column')
+ };
+
+ var index = this._findMapping(
+ needle,
+ this._generatedMappings,
+ "generatedLine",
+ "generatedColumn",
+ util.compareByGeneratedPositionsDeflated,
+ util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
+ );
+
+ if (index >= 0) {
+ var mapping = this._generatedMappings[index];
+
+ if (mapping.generatedLine === needle.generatedLine) {
+ var source = util.getArg(mapping, 'source', null);
+ if (source !== null) {
+ source = this._sources.at(source);
+ source = util.computeSourceURL(this.sourceRoot, source, this._sourceMapURL);
+ }
+ var name = util.getArg(mapping, 'name', null);
+ if (name !== null) {
+ name = this._names.at(name);
+ }
+ return {
+ source: source,
+ line: util.getArg(mapping, 'originalLine', null),
+ column: util.getArg(mapping, 'originalColumn', null),
+ name: name
+ };
+ }
+ }
+
+ return {
+ source: null,
+ line: null,
+ column: null,
+ name: null
+ };
+ };
+
+/**
+ * Return true if we have the source content for every source in the source
+ * map, false otherwise.
+ */
+BasicSourceMapConsumer.prototype.hasContentsOfAllSources =
+ function BasicSourceMapConsumer_hasContentsOfAllSources() {
+ if (!this.sourcesContent) {
+ return false;
+ }
+ return this.sourcesContent.length >= this._sources.size() &&
+ !this.sourcesContent.some(function (sc) { return sc == null; });
+ };
+
+/**
+ * Returns the original source content. The only argument is the url of the
+ * original source file. Returns null if no original source content is
+ * available.
+ */
+BasicSourceMapConsumer.prototype.sourceContentFor =
+ function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
+ if (!this.sourcesContent) {
+ return null;
+ }
+
+ var index = this._findSourceIndex(aSource);
+ if (index >= 0) {
+ return this.sourcesContent[index];
+ }
+
+ var relativeSource = aSource;
+ if (this.sourceRoot != null) {
+ relativeSource = util.relative(this.sourceRoot, relativeSource);
+ }
+
+ var url;
+ if (this.sourceRoot != null
+ && (url = util.urlParse(this.sourceRoot))) {
+ // XXX: file:// URIs and absolute paths lead to unexpected behavior for
+ // many users. We can help them out when they expect file:// URIs to
+ // behave like it would if they were running a local HTTP server. See
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
+ var fileUriAbsPath = relativeSource.replace(/^file:\/\//, "");
+ if (url.scheme == "file"
+ && this._sources.has(fileUriAbsPath)) {
+ return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
+ }
+
+ if ((!url.path || url.path == "/")
+ && this._sources.has("/" + relativeSource)) {
+ return this.sourcesContent[this._sources.indexOf("/" + relativeSource)];
+ }
+ }
+
+ // This function is used recursively from
+ // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
+ // don't want to throw if we can't find the source - we just want to
+ // return null, so we provide a flag to exit gracefully.
+ if (nullOnMissing) {
+ return null;
+ }
+ else {
+ throw new Error('"' + relativeSource + '" is not in the SourceMap.');
+ }
+ };
+
+/**
+ * Returns the generated line and column information for the original source,
+ * line, and column positions provided. The only argument is an object with
+ * the following properties:
+ *
+ * - source: The filename of the original source.
+ * - line: The line number in the original source. The line number
+ * is 1-based.
+ * - column: The column number in the original source. The column
+ * number is 0-based.
+ * - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
+ * 'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
+ * closest element that is smaller than or greater than the one we are
+ * searching for, respectively, if the exact element cannot be found.
+ * Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
+ *
+ * and an object is returned with the following properties:
+ *
+ * - line: The line number in the generated source, or null. The
+ * line number is 1-based.
+ * - column: The column number in the generated source, or null.
+ * The column number is 0-based.
+ */
+BasicSourceMapConsumer.prototype.generatedPositionFor =
+ function SourceMapConsumer_generatedPositionFor(aArgs) {
+ var source = util.getArg(aArgs, 'source');
+ source = this._findSourceIndex(source);
+ if (source < 0) {
+ return {
+ line: null,
+ column: null,
+ lastColumn: null
+ };
+ }
+
+ var needle = {
+ source: source,
+ originalLine: util.getArg(aArgs, 'line'),
+ originalColumn: util.getArg(aArgs, 'column')
+ };
+
+ var index = this._findMapping(
+ needle,
+ this._originalMappings,
+ "originalLine",
+ "originalColumn",
+ util.compareByOriginalPositions,
+ util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
+ );
+
+ if (index >= 0) {
+ var mapping = this._originalMappings[index];
+
+ if (mapping.source === needle.source) {
+ return {
+ line: util.getArg(mapping, 'generatedLine', null),
+ column: util.getArg(mapping, 'generatedColumn', null),
+ lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
+ };
+ }
+ }
+
+ return {
+ line: null,
+ column: null,
+ lastColumn: null
+ };
+ };
+
+exports.BasicSourceMapConsumer = BasicSourceMapConsumer;
+
+/**
+ * An IndexedSourceMapConsumer instance represents a parsed source map which
+ * we can query for information. It differs from BasicSourceMapConsumer in
+ * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
+ * input.
+ *
+ * The first parameter is a raw source map (either as a JSON string, or already
+ * parsed to an object). According to the spec for indexed source maps, they
+ * have the following attributes:
+ *
+ * - version: Which version of the source map spec this map is following.
+ * - file: Optional. The generated file this source map is associated with.
+ * - sections: A list of section definitions.
+ *
+ * Each value under the "sections" field has two fields:
+ * - offset: The offset into the original specified at which this section
+ * begins to apply, defined as an object with a "line" and "column"
+ * field.
+ * - map: A source map definition. This source map could also be indexed,
+ * but doesn't have to be.
+ *
+ * Instead of the "map" field, it's also possible to have a "url" field
+ * specifying a URL to retrieve a source map from, but that's currently
+ * unsupported.
+ *
+ * Here's an example source map, taken from the source map spec[0], but
+ * modified to omit a section which uses the "url" field.
+ *
+ * {
+ * version : 3,
+ * file: "app.js",
+ * sections: [{
+ * offset: {line:100, column:10},
+ * map: {
+ * version : 3,
+ * file: "section.js",
+ * sources: ["foo.js", "bar.js"],
+ * names: ["src", "maps", "are", "fun"],
+ * mappings: "AAAA,E;;ABCDE;"
+ * }
+ * }],
+ * }
+ *
+ * The second parameter, if given, is a string whose value is the URL
+ * at which the source map was found. This URL is used to compute the
+ * sources array.
+ *
+ * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
+ */
+function IndexedSourceMapConsumer(aSourceMap, aSourceMapURL) {
+ var sourceMap = aSourceMap;
+ if (typeof aSourceMap === 'string') {
+ sourceMap = util.parseSourceMapInput(aSourceMap);
+ }
+
+ var version = util.getArg(sourceMap, 'version');
+ var sections = util.getArg(sourceMap, 'sections');
+
+ if (version != this._version) {
+ throw new Error('Unsupported version: ' + version);
+ }
+
+ this._sources = new ArraySet();
+ this._names = new ArraySet();
+
+ var lastOffset = {
+ line: -1,
+ column: 0
+ };
+ this._sections = sections.map(function (s) {
+ if (s.url) {
+ // The url field will require support for asynchronicity.
+ // See https://github.com/mozilla/source-map/issues/16
+ throw new Error('Support for url field in sections not implemented.');
+ }
+ var offset = util.getArg(s, 'offset');
+ var offsetLine = util.getArg(offset, 'line');
+ var offsetColumn = util.getArg(offset, 'column');
+
+ if (offsetLine < lastOffset.line ||
+ (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) {
+ throw new Error('Section offsets must be ordered and non-overlapping.');
+ }
+ lastOffset = offset;
+
+ return {
+ generatedOffset: {
+ // The offset fields are 0-based, but we use 1-based indices when
+ // encoding/decoding from VLQ.
+ generatedLine: offsetLine + 1,
+ generatedColumn: offsetColumn + 1
+ },
+ consumer: new SourceMapConsumer(util.getArg(s, 'map'), aSourceMapURL)
+ }
+ });
+}
+
+IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
+IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;
+
+/**
+ * The version of the source mapping spec that we are consuming.
+ */
+IndexedSourceMapConsumer.prototype._version = 3;
+
+/**
+ * The list of original sources.
+ */
+Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
+ get: function () {
+ var sources = [];
+ for (var i = 0; i < this._sections.length; i++) {
+ for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
+ sources.push(this._sections[i].consumer.sources[j]);
+ }
+ }
+ return sources;
+ }
+});
+
+/**
+ * Returns the original source, line, and column information for the generated
+ * source's line and column positions provided. The only argument is an object
+ * with the following properties:
+ *
+ * - line: The line number in the generated source. The line number
+ * is 1-based.
+ * - column: The column number in the generated source. The column
+ * number is 0-based.
+ *
+ * and an object is returned with the following properties:
+ *
+ * - source: The original source file, or null.
+ * - line: The line number in the original source, or null. The
+ * line number is 1-based.
+ * - column: The column number in the original source, or null. The
+ * column number is 0-based.
+ * - name: The original identifier, or null.
+ */
+IndexedSourceMapConsumer.prototype.originalPositionFor =
+ function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
+ var needle = {
+ generatedLine: util.getArg(aArgs, 'line'),
+ generatedColumn: util.getArg(aArgs, 'column')
+ };
+
+ // Find the section containing the generated position we're trying to map
+ // to an original position.
+ var sectionIndex = binarySearch.search(needle, this._sections,
+ function(needle, section) {
+ var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
+ if (cmp) {
+ return cmp;
+ }
+
+ return (needle.generatedColumn -
+ section.generatedOffset.generatedColumn);
+ });
+ var section = this._sections[sectionIndex];
+
+ if (!section) {
+ return {
+ source: null,
+ line: null,
+ column: null,
+ name: null
+ };
+ }
+
+ return section.consumer.originalPositionFor({
+ line: needle.generatedLine -
+ (section.generatedOffset.generatedLine - 1),
+ column: needle.generatedColumn -
+ (section.generatedOffset.generatedLine === needle.generatedLine
+ ? section.generatedOffset.generatedColumn - 1
+ : 0),
+ bias: aArgs.bias
+ });
+ };
+
+/**
+ * Return true if we have the source content for every source in the source
+ * map, false otherwise.
+ */
+IndexedSourceMapConsumer.prototype.hasContentsOfAllSources =
+ function IndexedSourceMapConsumer_hasContentsOfAllSources() {
+ return this._sections.every(function (s) {
+ return s.consumer.hasContentsOfAllSources();
+ });
+ };
+
+/**
+ * Returns the original source content. The only argument is the url of the
+ * original source file. Returns null if no original source content is
+ * available.
+ */
+IndexedSourceMapConsumer.prototype.sourceContentFor =
+ function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
+ for (var i = 0; i < this._sections.length; i++) {
+ var section = this._sections[i];
+
+ var content = section.consumer.sourceContentFor(aSource, true);
+ if (content) {
+ return content;
+ }
+ }
+ if (nullOnMissing) {
+ return null;
+ }
+ else {
+ throw new Error('"' + aSource + '" is not in the SourceMap.');
+ }
+ };
+
+/**
+ * Returns the generated line and column information for the original source,
+ * line, and column positions provided. The only argument is an object with
+ * the following properties:
+ *
+ * - source: The filename of the original source.
+ * - line: The line number in the original source. The line number
+ * is 1-based.
+ * - column: The column number in the original source. The column
+ * number is 0-based.
+ *
+ * and an object is returned with the following properties:
+ *
+ * - line: The line number in the generated source, or null. The
+ * line number is 1-based.
+ * - column: The column number in the generated source, or null.
+ * The column number is 0-based.
+ */
+IndexedSourceMapConsumer.prototype.generatedPositionFor =
+ function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
+ for (var i = 0; i < this._sections.length; i++) {
+ var section = this._sections[i];
+
+ // Only consider this section if the requested source is in the list of
+ // sources of the consumer.
+ if (section.consumer._findSourceIndex(util.getArg(aArgs, 'source')) === -1) {
+ continue;
+ }
+ var generatedPosition = section.consumer.generatedPositionFor(aArgs);
+ if (generatedPosition) {
+ var ret = {
+ line: generatedPosition.line +
+ (section.generatedOffset.generatedLine - 1),
+ column: generatedPosition.column +
+ (section.generatedOffset.generatedLine === generatedPosition.line
+ ? section.generatedOffset.generatedColumn - 1
+ : 0)
+ };
+ return ret;
+ }
+ }
+
+ return {
+ line: null,
+ column: null
+ };
+ };
+
+/**
+ * Parse the mappings in a string in to a data structure which we can easily
+ * query (the ordered arrays in the `this.__generatedMappings` and
+ * `this.__originalMappings` properties).
+ */
+IndexedSourceMapConsumer.prototype._parseMappings =
+ function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+ this.__generatedMappings = [];
+ this.__originalMappings = [];
+ for (var i = 0; i < this._sections.length; i++) {
+ var section = this._sections[i];
+ var sectionMappings = section.consumer._generatedMappings;
+ for (var j = 0; j < sectionMappings.length; j++) {
+ var mapping = sectionMappings[j];
+
+ var source = section.consumer._sources.at(mapping.source);
+ source = util.computeSourceURL(section.consumer.sourceRoot, source, this._sourceMapURL);
+ this._sources.add(source);
+ source = this._sources.indexOf(source);
+
+ var name = null;
+ if (mapping.name) {
+ name = section.consumer._names.at(mapping.name);
+ this._names.add(name);
+ name = this._names.indexOf(name);
+ }
+
+ // The mappings coming from the consumer for the section have
+ // generated positions relative to the start of the section, so we
+ // need to offset them to be relative to the start of the concatenated
+ // generated file.
+ var adjustedMapping = {
+ source: source,
+ generatedLine: mapping.generatedLine +
+ (section.generatedOffset.generatedLine - 1),
+ generatedColumn: mapping.generatedColumn +
+ (section.generatedOffset.generatedLine === mapping.generatedLine
+ ? section.generatedOffset.generatedColumn - 1
+ : 0),
+ originalLine: mapping.originalLine,
+ originalColumn: mapping.originalColumn,
+ name: name
+ };
+
+ this.__generatedMappings.push(adjustedMapping);
+ if (typeof adjustedMapping.originalLine === 'number') {
+ this.__originalMappings.push(adjustedMapping);
+ }
+ }
+ }
+
+ quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated);
+ quickSort(this.__originalMappings, util.compareByOriginalPositions);
+ };
+
+exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;
diff --git a/node_modules/source-map-js/lib/source-map-generator.js b/node_modules/source-map-js/lib/source-map-generator.js
new file mode 100644
index 0000000..508bcfb
--- /dev/null
+++ b/node_modules/source-map-js/lib/source-map-generator.js
@@ -0,0 +1,425 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var base64VLQ = require('./base64-vlq');
+var util = require('./util');
+var ArraySet = require('./array-set').ArraySet;
+var MappingList = require('./mapping-list').MappingList;
+
+/**
+ * An instance of the SourceMapGenerator represents a source map which is
+ * being built incrementally. You may pass an object with the following
+ * properties:
+ *
+ * - file: The filename of the generated source.
+ * - sourceRoot: A root for all relative URLs in this source map.
+ */
+function SourceMapGenerator(aArgs) {
+ if (!aArgs) {
+ aArgs = {};
+ }
+ this._file = util.getArg(aArgs, 'file', null);
+ this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
+ this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
+ this._sources = new ArraySet();
+ this._names = new ArraySet();
+ this._mappings = new MappingList();
+ this._sourcesContents = null;
+}
+
+SourceMapGenerator.prototype._version = 3;
+
+/**
+ * Creates a new SourceMapGenerator based on a SourceMapConsumer
+ *
+ * @param aSourceMapConsumer The SourceMap.
+ */
+SourceMapGenerator.fromSourceMap =
+ function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
+ var sourceRoot = aSourceMapConsumer.sourceRoot;
+ var generator = new SourceMapGenerator({
+ file: aSourceMapConsumer.file,
+ sourceRoot: sourceRoot
+ });
+ aSourceMapConsumer.eachMapping(function (mapping) {
+ var newMapping = {
+ generated: {
+ line: mapping.generatedLine,
+ column: mapping.generatedColumn
+ }
+ };
+
+ if (mapping.source != null) {
+ newMapping.source = mapping.source;
+ if (sourceRoot != null) {
+ newMapping.source = util.relative(sourceRoot, newMapping.source);
+ }
+
+ newMapping.original = {
+ line: mapping.originalLine,
+ column: mapping.originalColumn
+ };
+
+ if (mapping.name != null) {
+ newMapping.name = mapping.name;
+ }
+ }
+
+ generator.addMapping(newMapping);
+ });
+ aSourceMapConsumer.sources.forEach(function (sourceFile) {
+ var sourceRelative = sourceFile;
+ if (sourceRoot !== null) {
+ sourceRelative = util.relative(sourceRoot, sourceFile);
+ }
+
+ if (!generator._sources.has(sourceRelative)) {
+ generator._sources.add(sourceRelative);
+ }
+
+ var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+ if (content != null) {
+ generator.setSourceContent(sourceFile, content);
+ }
+ });
+ return generator;
+ };
+
+/**
+ * Add a single mapping from original source line and column to the generated
+ * source's line and column for this source map being created. The mapping
+ * object should have the following properties:
+ *
+ * - generated: An object with the generated line and column positions.
+ * - original: An object with the original line and column positions.
+ * - source: The original source file (relative to the sourceRoot).
+ * - name: An optional original token name for this mapping.
+ */
+SourceMapGenerator.prototype.addMapping =
+ function SourceMapGenerator_addMapping(aArgs) {
+ var generated = util.getArg(aArgs, 'generated');
+ var original = util.getArg(aArgs, 'original', null);
+ var source = util.getArg(aArgs, 'source', null);
+ var name = util.getArg(aArgs, 'name', null);
+
+ if (!this._skipValidation) {
+ this._validateMapping(generated, original, source, name);
+ }
+
+ if (source != null) {
+ source = String(source);
+ if (!this._sources.has(source)) {
+ this._sources.add(source);
+ }
+ }
+
+ if (name != null) {
+ name = String(name);
+ if (!this._names.has(name)) {
+ this._names.add(name);
+ }
+ }
+
+ this._mappings.add({
+ generatedLine: generated.line,
+ generatedColumn: generated.column,
+ originalLine: original != null && original.line,
+ originalColumn: original != null && original.column,
+ source: source,
+ name: name
+ });
+ };
+
+/**
+ * Set the source content for a source file.
+ */
+SourceMapGenerator.prototype.setSourceContent =
+ function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
+ var source = aSourceFile;
+ if (this._sourceRoot != null) {
+ source = util.relative(this._sourceRoot, source);
+ }
+
+ if (aSourceContent != null) {
+ // Add the source content to the _sourcesContents map.
+ // Create a new _sourcesContents map if the property is null.
+ if (!this._sourcesContents) {
+ this._sourcesContents = Object.create(null);
+ }
+ this._sourcesContents[util.toSetString(source)] = aSourceContent;
+ } else if (this._sourcesContents) {
+ // Remove the source file from the _sourcesContents map.
+ // If the _sourcesContents map is empty, set the property to null.
+ delete this._sourcesContents[util.toSetString(source)];
+ if (Object.keys(this._sourcesContents).length === 0) {
+ this._sourcesContents = null;
+ }
+ }
+ };
+
+/**
+ * Applies the mappings of a sub-source-map for a specific source file to the
+ * source map being generated. Each mapping to the supplied source file is
+ * rewritten using the supplied source map. Note: The resolution for the
+ * resulting mappings is the minimium of this map and the supplied map.
+ *
+ * @param aSourceMapConsumer The source map to be applied.
+ * @param aSourceFile Optional. The filename of the source file.
+ * If omitted, SourceMapConsumer's file property will be used.
+ * @param aSourceMapPath Optional. The dirname of the path to the source map
+ * to be applied. If relative, it is relative to the SourceMapConsumer.
+ * This parameter is needed when the two source maps aren't in the same
+ * directory, and the source map to be applied contains relative source
+ * paths. If so, those relative source paths need to be rewritten
+ * relative to the SourceMapGenerator.
+ */
+SourceMapGenerator.prototype.applySourceMap =
+ function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
+ var sourceFile = aSourceFile;
+ // If aSourceFile is omitted, we will use the file property of the SourceMap
+ if (aSourceFile == null) {
+ if (aSourceMapConsumer.file == null) {
+ throw new Error(
+ 'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
+ 'or the source map\'s "file" property. Both were omitted.'
+ );
+ }
+ sourceFile = aSourceMapConsumer.file;
+ }
+ var sourceRoot = this._sourceRoot;
+ // Make "sourceFile" relative if an absolute Url is passed.
+ if (sourceRoot != null) {
+ sourceFile = util.relative(sourceRoot, sourceFile);
+ }
+ // Applying the SourceMap can add and remove items from the sources and
+ // the names array.
+ var newSources = new ArraySet();
+ var newNames = new ArraySet();
+
+ // Find mappings for the "sourceFile"
+ this._mappings.unsortedForEach(function (mapping) {
+ if (mapping.source === sourceFile && mapping.originalLine != null) {
+ // Check if it can be mapped by the source map, then update the mapping.
+ var original = aSourceMapConsumer.originalPositionFor({
+ line: mapping.originalLine,
+ column: mapping.originalColumn
+ });
+ if (original.source != null) {
+ // Copy mapping
+ mapping.source = original.source;
+ if (aSourceMapPath != null) {
+ mapping.source = util.join(aSourceMapPath, mapping.source)
+ }
+ if (sourceRoot != null) {
+ mapping.source = util.relative(sourceRoot, mapping.source);
+ }
+ mapping.originalLine = original.line;
+ mapping.originalColumn = original.column;
+ if (original.name != null) {
+ mapping.name = original.name;
+ }
+ }
+ }
+
+ var source = mapping.source;
+ if (source != null && !newSources.has(source)) {
+ newSources.add(source);
+ }
+
+ var name = mapping.name;
+ if (name != null && !newNames.has(name)) {
+ newNames.add(name);
+ }
+
+ }, this);
+ this._sources = newSources;
+ this._names = newNames;
+
+ // Copy sourcesContents of applied map.
+ aSourceMapConsumer.sources.forEach(function (sourceFile) {
+ var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+ if (content != null) {
+ if (aSourceMapPath != null) {
+ sourceFile = util.join(aSourceMapPath, sourceFile);
+ }
+ if (sourceRoot != null) {
+ sourceFile = util.relative(sourceRoot, sourceFile);
+ }
+ this.setSourceContent(sourceFile, content);
+ }
+ }, this);
+ };
+
+/**
+ * A mapping can have one of the three levels of data:
+ *
+ * 1. Just the generated position.
+ * 2. The Generated position, original position, and original source.
+ * 3. Generated and original position, original source, as well as a name
+ * token.
+ *
+ * To maintain consistency, we validate that any new mapping being added falls
+ * in to one of these categories.
+ */
+SourceMapGenerator.prototype._validateMapping =
+ function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
+ aName) {
+ // When aOriginal is truthy but has empty values for .line and .column,
+ // it is most likely a programmer error. In this case we throw a very
+ // specific error message to try to guide them the right way.
+ // For example: https://github.com/Polymer/polymer-bundler/pull/519
+ if (aOriginal && typeof aOriginal.line !== 'number' && typeof aOriginal.column !== 'number') {
+ throw new Error(
+ 'original.line and original.column are not numbers -- you probably meant to omit ' +
+ 'the original mapping entirely and only map the generated position. If so, pass ' +
+ 'null for the original mapping instead of an object with empty or null values.'
+ );
+ }
+
+ if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+ && aGenerated.line > 0 && aGenerated.column >= 0
+ && !aOriginal && !aSource && !aName) {
+ // Case 1.
+ return;
+ }
+ else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+ && aOriginal && 'line' in aOriginal && 'column' in aOriginal
+ && aGenerated.line > 0 && aGenerated.column >= 0
+ && aOriginal.line > 0 && aOriginal.column >= 0
+ && aSource) {
+ // Cases 2 and 3.
+ return;
+ }
+ else {
+ throw new Error('Invalid mapping: ' + JSON.stringify({
+ generated: aGenerated,
+ source: aSource,
+ original: aOriginal,
+ name: aName
+ }));
+ }
+ };
+
+/**
+ * Serialize the accumulated mappings in to the stream of base 64 VLQs
+ * specified by the source map format.
+ */
+SourceMapGenerator.prototype._serializeMappings =
+ function SourceMapGenerator_serializeMappings() {
+ var previousGeneratedColumn = 0;
+ var previousGeneratedLine = 1;
+ var previousOriginalColumn = 0;
+ var previousOriginalLine = 0;
+ var previousName = 0;
+ var previousSource = 0;
+ var result = '';
+ var next;
+ var mapping;
+ var nameIdx;
+ var sourceIdx;
+
+ var mappings = this._mappings.toArray();
+ for (var i = 0, len = mappings.length; i < len; i++) {
+ mapping = mappings[i];
+ next = ''
+
+ if (mapping.generatedLine !== previousGeneratedLine) {
+ previousGeneratedColumn = 0;
+ while (mapping.generatedLine !== previousGeneratedLine) {
+ next += ';';
+ previousGeneratedLine++;
+ }
+ }
+ else {
+ if (i > 0) {
+ if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
+ continue;
+ }
+ next += ',';
+ }
+ }
+
+ next += base64VLQ.encode(mapping.generatedColumn
+ - previousGeneratedColumn);
+ previousGeneratedColumn = mapping.generatedColumn;
+
+ if (mapping.source != null) {
+ sourceIdx = this._sources.indexOf(mapping.source);
+ next += base64VLQ.encode(sourceIdx - previousSource);
+ previousSource = sourceIdx;
+
+ // lines are stored 0-based in SourceMap spec version 3
+ next += base64VLQ.encode(mapping.originalLine - 1
+ - previousOriginalLine);
+ previousOriginalLine = mapping.originalLine - 1;
+
+ next += base64VLQ.encode(mapping.originalColumn
+ - previousOriginalColumn);
+ previousOriginalColumn = mapping.originalColumn;
+
+ if (mapping.name != null) {
+ nameIdx = this._names.indexOf(mapping.name);
+ next += base64VLQ.encode(nameIdx - previousName);
+ previousName = nameIdx;
+ }
+ }
+
+ result += next;
+ }
+
+ return result;
+ };
+
+SourceMapGenerator.prototype._generateSourcesContent =
+ function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
+ return aSources.map(function (source) {
+ if (!this._sourcesContents) {
+ return null;
+ }
+ if (aSourceRoot != null) {
+ source = util.relative(aSourceRoot, source);
+ }
+ var key = util.toSetString(source);
+ return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)
+ ? this._sourcesContents[key]
+ : null;
+ }, this);
+ };
+
+/**
+ * Externalize the source map.
+ */
+SourceMapGenerator.prototype.toJSON =
+ function SourceMapGenerator_toJSON() {
+ var map = {
+ version: this._version,
+ sources: this._sources.toArray(),
+ names: this._names.toArray(),
+ mappings: this._serializeMappings()
+ };
+ if (this._file != null) {
+ map.file = this._file;
+ }
+ if (this._sourceRoot != null) {
+ map.sourceRoot = this._sourceRoot;
+ }
+ if (this._sourcesContents) {
+ map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
+ }
+
+ return map;
+ };
+
+/**
+ * Render the source map being generated to a string.
+ */
+SourceMapGenerator.prototype.toString =
+ function SourceMapGenerator_toString() {
+ return JSON.stringify(this.toJSON());
+ };
+
+exports.SourceMapGenerator = SourceMapGenerator;
diff --git a/node_modules/source-map-js/lib/source-node.js b/node_modules/source-map-js/lib/source-node.js
new file mode 100644
index 0000000..8bcdbe3
--- /dev/null
+++ b/node_modules/source-map-js/lib/source-node.js
@@ -0,0 +1,413 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator;
+var util = require('./util');
+
+// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
+// operating systems these days (capturing the result).
+var REGEX_NEWLINE = /(\r?\n)/;
+
+// Newline character code for charCodeAt() comparisons
+var NEWLINE_CODE = 10;
+
+// Private symbol for identifying `SourceNode`s when multiple versions of
+// the source-map library are loaded. This MUST NOT CHANGE across
+// versions!
+var isSourceNode = "$$$isSourceNode$$$";
+
+/**
+ * SourceNodes provide a way to abstract over interpolating/concatenating
+ * snippets of generated JavaScript source code while maintaining the line and
+ * column information associated with the original source code.
+ *
+ * @param aLine The original line number.
+ * @param aColumn The original column number.
+ * @param aSource The original source's filename.
+ * @param aChunks Optional. An array of strings which are snippets of
+ * generated JS, or other SourceNodes.
+ * @param aName The original identifier.
+ */
+function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
+ this.children = [];
+ this.sourceContents = {};
+ this.line = aLine == null ? null : aLine;
+ this.column = aColumn == null ? null : aColumn;
+ this.source = aSource == null ? null : aSource;
+ this.name = aName == null ? null : aName;
+ this[isSourceNode] = true;
+ if (aChunks != null) this.add(aChunks);
+}
+
+/**
+ * Creates a SourceNode from generated code and a SourceMapConsumer.
+ *
+ * @param aGeneratedCode The generated code
+ * @param aSourceMapConsumer The SourceMap for the generated code
+ * @param aRelativePath Optional. The path that relative sources in the
+ * SourceMapConsumer should be relative to.
+ */
+SourceNode.fromStringWithSourceMap =
+ function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
+ // The SourceNode we want to fill with the generated code
+ // and the SourceMap
+ var node = new SourceNode();
+
+ // All even indices of this array are one line of the generated code,
+ // while all odd indices are the newlines between two adjacent lines
+ // (since `REGEX_NEWLINE` captures its match).
+ // Processed fragments are accessed by calling `shiftNextLine`.
+ var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
+ var remainingLinesIndex = 0;
+ var shiftNextLine = function() {
+ var lineContents = getNextLine();
+ // The last line of a file might not have a newline.
+ var newLine = getNextLine() || "";
+ return lineContents + newLine;
+
+ function getNextLine() {
+ return remainingLinesIndex < remainingLines.length ?
+ remainingLines[remainingLinesIndex++] : undefined;
+ }
+ };
+
+ // We need to remember the position of "remainingLines"
+ var lastGeneratedLine = 1, lastGeneratedColumn = 0;
+
+ // The generate SourceNodes we need a code range.
+ // To extract it current and last mapping is used.
+ // Here we store the last mapping.
+ var lastMapping = null;
+
+ aSourceMapConsumer.eachMapping(function (mapping) {
+ if (lastMapping !== null) {
+ // We add the code from "lastMapping" to "mapping":
+ // First check if there is a new line in between.
+ if (lastGeneratedLine < mapping.generatedLine) {
+ // Associate first line with "lastMapping"
+ addMappingWithCode(lastMapping, shiftNextLine());
+ lastGeneratedLine++;
+ lastGeneratedColumn = 0;
+ // The remaining code is added without mapping
+ } else {
+ // There is no new line in between.
+ // Associate the code between "lastGeneratedColumn" and
+ // "mapping.generatedColumn" with "lastMapping"
+ var nextLine = remainingLines[remainingLinesIndex] || '';
+ var code = nextLine.substr(0, mapping.generatedColumn -
+ lastGeneratedColumn);
+ remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn -
+ lastGeneratedColumn);
+ lastGeneratedColumn = mapping.generatedColumn;
+ addMappingWithCode(lastMapping, code);
+ // No more remaining code, continue
+ lastMapping = mapping;
+ return;
+ }
+ }
+ // We add the generated code until the first mapping
+ // to the SourceNode without any mapping.
+ // Each line is added as separate string.
+ while (lastGeneratedLine < mapping.generatedLine) {
+ node.add(shiftNextLine());
+ lastGeneratedLine++;
+ }
+ if (lastGeneratedColumn < mapping.generatedColumn) {
+ var nextLine = remainingLines[remainingLinesIndex] || '';
+ node.add(nextLine.substr(0, mapping.generatedColumn));
+ remainingLines[remainingLinesIndex] = nextLine.substr(mapping.generatedColumn);
+ lastGeneratedColumn = mapping.generatedColumn;
+ }
+ lastMapping = mapping;
+ }, this);
+ // We have processed all mappings.
+ if (remainingLinesIndex < remainingLines.length) {
+ if (lastMapping) {
+ // Associate the remaining code in the current line with "lastMapping"
+ addMappingWithCode(lastMapping, shiftNextLine());
+ }
+ // and add the remaining lines without any mapping
+ node.add(remainingLines.splice(remainingLinesIndex).join(""));
+ }
+
+ // Copy sourcesContent into SourceNode
+ aSourceMapConsumer.sources.forEach(function (sourceFile) {
+ var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+ if (content != null) {
+ if (aRelativePath != null) {
+ sourceFile = util.join(aRelativePath, sourceFile);
+ }
+ node.setSourceContent(sourceFile, content);
+ }
+ });
+
+ return node;
+
+ function addMappingWithCode(mapping, code) {
+ if (mapping === null || mapping.source === undefined) {
+ node.add(code);
+ } else {
+ var source = aRelativePath
+ ? util.join(aRelativePath, mapping.source)
+ : mapping.source;
+ node.add(new SourceNode(mapping.originalLine,
+ mapping.originalColumn,
+ source,
+ code,
+ mapping.name));
+ }
+ }
+ };
+
+/**
+ * Add a chunk of generated JS to this source node.
+ *
+ * @param aChunk A string snippet of generated JS code, another instance of
+ * SourceNode, or an array where each member is one of those things.
+ */
+SourceNode.prototype.add = function SourceNode_add(aChunk) {
+ if (Array.isArray(aChunk)) {
+ aChunk.forEach(function (chunk) {
+ this.add(chunk);
+ }, this);
+ }
+ else if (aChunk[isSourceNode] || typeof aChunk === "string") {
+ if (aChunk) {
+ this.children.push(aChunk);
+ }
+ }
+ else {
+ throw new TypeError(
+ "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+ );
+ }
+ return this;
+};
+
+/**
+ * Add a chunk of generated JS to the beginning of this source node.
+ *
+ * @param aChunk A string snippet of generated JS code, another instance of
+ * SourceNode, or an array where each member is one of those things.
+ */
+SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
+ if (Array.isArray(aChunk)) {
+ for (var i = aChunk.length-1; i >= 0; i--) {
+ this.prepend(aChunk[i]);
+ }
+ }
+ else if (aChunk[isSourceNode] || typeof aChunk === "string") {
+ this.children.unshift(aChunk);
+ }
+ else {
+ throw new TypeError(
+ "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+ );
+ }
+ return this;
+};
+
+/**
+ * Walk over the tree of JS snippets in this node and its children. The
+ * walking function is called once for each snippet of JS and is passed that
+ * snippet and the its original associated source's line/column location.
+ *
+ * @param aFn The traversal function.
+ */
+SourceNode.prototype.walk = function SourceNode_walk(aFn) {
+ var chunk;
+ for (var i = 0, len = this.children.length; i < len; i++) {
+ chunk = this.children[i];
+ if (chunk[isSourceNode]) {
+ chunk.walk(aFn);
+ }
+ else {
+ if (chunk !== '') {
+ aFn(chunk, { source: this.source,
+ line: this.line,
+ column: this.column,
+ name: this.name });
+ }
+ }
+ }
+};
+
+/**
+ * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
+ * each of `this.children`.
+ *
+ * @param aSep The separator.
+ */
+SourceNode.prototype.join = function SourceNode_join(aSep) {
+ var newChildren;
+ var i;
+ var len = this.children.length;
+ if (len > 0) {
+ newChildren = [];
+ for (i = 0; i < len-1; i++) {
+ newChildren.push(this.children[i]);
+ newChildren.push(aSep);
+ }
+ newChildren.push(this.children[i]);
+ this.children = newChildren;
+ }
+ return this;
+};
+
+/**
+ * Call String.prototype.replace on the very right-most source snippet. Useful
+ * for trimming whitespace from the end of a source node, etc.
+ *
+ * @param aPattern The pattern to replace.
+ * @param aReplacement The thing to replace the pattern with.
+ */
+SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
+ var lastChild = this.children[this.children.length - 1];
+ if (lastChild[isSourceNode]) {
+ lastChild.replaceRight(aPattern, aReplacement);
+ }
+ else if (typeof lastChild === 'string') {
+ this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
+ }
+ else {
+ this.children.push(''.replace(aPattern, aReplacement));
+ }
+ return this;
+};
+
+/**
+ * Set the source content for a source file. This will be added to the SourceMapGenerator
+ * in the sourcesContent field.
+ *
+ * @param aSourceFile The filename of the source file
+ * @param aSourceContent The content of the source file
+ */
+SourceNode.prototype.setSourceContent =
+ function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
+ this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
+ };
+
+/**
+ * Walk over the tree of SourceNodes. The walking function is called for each
+ * source file content and is passed the filename and source content.
+ *
+ * @param aFn The traversal function.
+ */
+SourceNode.prototype.walkSourceContents =
+ function SourceNode_walkSourceContents(aFn) {
+ for (var i = 0, len = this.children.length; i < len; i++) {
+ if (this.children[i][isSourceNode]) {
+ this.children[i].walkSourceContents(aFn);
+ }
+ }
+
+ var sources = Object.keys(this.sourceContents);
+ for (var i = 0, len = sources.length; i < len; i++) {
+ aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
+ }
+ };
+
+/**
+ * Return the string representation of this source node. Walks over the tree
+ * and concatenates all the various snippets together to one string.
+ */
+SourceNode.prototype.toString = function SourceNode_toString() {
+ var str = "";
+ this.walk(function (chunk) {
+ str += chunk;
+ });
+ return str;
+};
+
+/**
+ * Returns the string representation of this source node along with a source
+ * map.
+ */
+SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
+ var generated = {
+ code: "",
+ line: 1,
+ column: 0
+ };
+ var map = new SourceMapGenerator(aArgs);
+ var sourceMappingActive = false;
+ var lastOriginalSource = null;
+ var lastOriginalLine = null;
+ var lastOriginalColumn = null;
+ var lastOriginalName = null;
+ this.walk(function (chunk, original) {
+ generated.code += chunk;
+ if (original.source !== null
+ && original.line !== null
+ && original.column !== null) {
+ if(lastOriginalSource !== original.source
+ || lastOriginalLine !== original.line
+ || lastOriginalColumn !== original.column
+ || lastOriginalName !== original.name) {
+ map.addMapping({
+ source: original.source,
+ original: {
+ line: original.line,
+ column: original.column
+ },
+ generated: {
+ line: generated.line,
+ column: generated.column
+ },
+ name: original.name
+ });
+ }
+ lastOriginalSource = original.source;
+ lastOriginalLine = original.line;
+ lastOriginalColumn = original.column;
+ lastOriginalName = original.name;
+ sourceMappingActive = true;
+ } else if (sourceMappingActive) {
+ map.addMapping({
+ generated: {
+ line: generated.line,
+ column: generated.column
+ }
+ });
+ lastOriginalSource = null;
+ sourceMappingActive = false;
+ }
+ for (var idx = 0, length = chunk.length; idx < length; idx++) {
+ if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
+ generated.line++;
+ generated.column = 0;
+ // Mappings end at eol
+ if (idx + 1 === length) {
+ lastOriginalSource = null;
+ sourceMappingActive = false;
+ } else if (sourceMappingActive) {
+ map.addMapping({
+ source: original.source,
+ original: {
+ line: original.line,
+ column: original.column
+ },
+ generated: {
+ line: generated.line,
+ column: generated.column
+ },
+ name: original.name
+ });
+ }
+ } else {
+ generated.column++;
+ }
+ }
+ });
+ this.walkSourceContents(function (sourceFile, sourceContent) {
+ map.setSourceContent(sourceFile, sourceContent);
+ });
+
+ return { code: generated.code, map: map };
+};
+
+exports.SourceNode = SourceNode;
diff --git a/node_modules/source-map-js/lib/util.js b/node_modules/source-map-js/lib/util.js
new file mode 100644
index 0000000..430e2d0
--- /dev/null
+++ b/node_modules/source-map-js/lib/util.js
@@ -0,0 +1,594 @@
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+
+/**
+ * This is a helper function for getting values from parameter/options
+ * objects.
+ *
+ * @param args The object we are extracting values from
+ * @param name The name of the property we are getting.
+ * @param defaultValue An optional value to return if the property is missing
+ * from the object. If this is not specified and the property is missing, an
+ * error will be thrown.
+ */
+function getArg(aArgs, aName, aDefaultValue) {
+ if (aName in aArgs) {
+ return aArgs[aName];
+ } else if (arguments.length === 3) {
+ return aDefaultValue;
+ } else {
+ throw new Error('"' + aName + '" is a required argument.');
+ }
+}
+exports.getArg = getArg;
+
+var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/;
+var dataUrlRegexp = /^data:.+\,.+$/;
+
+function urlParse(aUrl) {
+ var match = aUrl.match(urlRegexp);
+ if (!match) {
+ return null;
+ }
+ return {
+ scheme: match[1],
+ auth: match[2],
+ host: match[3],
+ port: match[4],
+ path: match[5]
+ };
+}
+exports.urlParse = urlParse;
+
+function urlGenerate(aParsedUrl) {
+ var url = '';
+ if (aParsedUrl.scheme) {
+ url += aParsedUrl.scheme + ':';
+ }
+ url += '//';
+ if (aParsedUrl.auth) {
+ url += aParsedUrl.auth + '@';
+ }
+ if (aParsedUrl.host) {
+ url += aParsedUrl.host;
+ }
+ if (aParsedUrl.port) {
+ url += ":" + aParsedUrl.port
+ }
+ if (aParsedUrl.path) {
+ url += aParsedUrl.path;
+ }
+ return url;
+}
+exports.urlGenerate = urlGenerate;
+
+var MAX_CACHED_INPUTS = 32;
+
+/**
+ * Takes some function `f(input) -> result` and returns a memoized version of
+ * `f`.
+ *
+ * We keep at most `MAX_CACHED_INPUTS` memoized results of `f` alive. The
+ * memoization is a dumb-simple, linear least-recently-used cache.
+ */
+function lruMemoize(f) {
+ var cache = [];
+
+ return function(input) {
+ for (var i = 0; i < cache.length; i++) {
+ if (cache[i].input === input) {
+ var temp = cache[0];
+ cache[0] = cache[i];
+ cache[i] = temp;
+ return cache[0].result;
+ }
+ }
+
+ var result = f(input);
+
+ cache.unshift({
+ input,
+ result,
+ });
+
+ if (cache.length > MAX_CACHED_INPUTS) {
+ cache.pop();
+ }
+
+ return result;
+ };
+}
+
+/**
+ * Normalizes a path, or the path portion of a URL:
+ *
+ * - Replaces consecutive slashes with one slash.
+ * - Removes unnecessary '.' parts.
+ * - Removes unnecessary '<dir>/..' parts.
+ *
+ * Based on code in the Node.js 'path' core module.
+ *
+ * @param aPath The path or url to normalize.
+ */
+var normalize = lruMemoize(function normalize(aPath) {
+ var path = aPath;
+ var url = urlParse(aPath);
+ if (url) {
+ if (!url.path) {
+ return aPath;
+ }
+ path = url.path;
+ }
+ var isAbsolute = exports.isAbsolute(path);
+ // Split the path into parts between `/` characters. This is much faster than
+ // using `.split(/\/+/g)`.
+ var parts = [];
+ var start = 0;
+ var i = 0;
+ while (true) {
+ start = i;
+ i = path.indexOf("/", start);
+ if (i === -1) {
+ parts.push(path.slice(start));
+ break;
+ } else {
+ parts.push(path.slice(start, i));
+ while (i < path.length && path[i] === "/") {
+ i++;
+ }
+ }
+ }
+
+ for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
+ part = parts[i];
+ if (part === '.') {
+ parts.splice(i, 1);
+ } else if (part === '..') {
+ up++;
+ } else if (up > 0) {
+ if (part === '') {
+ // The first part is blank if the path is absolute. Trying to go
+ // above the root is a no-op. Therefore we can remove all '..' parts
+ // directly after the root.
+ parts.splice(i + 1, up);
+ up = 0;
+ } else {
+ parts.splice(i, 2);
+ up--;
+ }
+ }
+ }
+ path = parts.join('/');
+
+ if (path === '') {
+ path = isAbsolute ? '/' : '.';
+ }
+
+ if (url) {
+ url.path = path;
+ return urlGenerate(url);
+ }
+ return path;
+});
+exports.normalize = normalize;
+
+/**
+ * Joins two paths/URLs.
+ *
+ * @param aRoot The root path or URL.
+ * @param aPath The path or URL to be joined with the root.
+ *
+ * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
+ * scheme-relative URL: Then the scheme of aRoot, if any, is prepended
+ * first.
+ * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
+ * is updated with the result and aRoot is returned. Otherwise the result
+ * is returned.
+ * - If aPath is absolute, the result is aPath.
+ * - Otherwise the two paths are joined with a slash.
+ * - Joining for example 'http://' and 'www.example.com' is also supported.
+ */
+function join(aRoot, aPath) {
+ if (aRoot === "") {
+ aRoot = ".";
+ }
+ if (aPath === "") {
+ aPath = ".";
+ }
+ var aPathUrl = urlParse(aPath);
+ var aRootUrl = urlParse(aRoot);
+ if (aRootUrl) {
+ aRoot = aRootUrl.path || '/';
+ }
+
+ // `join(foo, '//www.example.org')`
+ if (aPathUrl && !aPathUrl.scheme) {
+ if (aRootUrl) {
+ aPathUrl.scheme = aRootUrl.scheme;
+ }
+ return urlGenerate(aPathUrl);
+ }
+
+ if (aPathUrl || aPath.match(dataUrlRegexp)) {
+ return aPath;
+ }
+
+ // `join('http://', 'www.example.com')`
+ if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
+ aRootUrl.host = aPath;
+ return urlGenerate(aRootUrl);
+ }
+
+ var joined = aPath.charAt(0) === '/'
+ ? aPath
+ : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);
+
+ if (aRootUrl) {
+ aRootUrl.path = joined;
+ return urlGenerate(aRootUrl);
+ }
+ return joined;
+}
+exports.join = join;
+
+exports.isAbsolute = function (aPath) {
+ return aPath.charAt(0) === '/' || urlRegexp.test(aPath);
+};
+
+/**
+ * Make a path relative to a URL or another path.
+ *
+ * @param aRoot The root path or URL.
+ * @param aPath The path or URL to be made relative to aRoot.
+ */
+function relative(aRoot, aPath) {
+ if (aRoot === "") {
+ aRoot = ".";
+ }
+
+ aRoot = aRoot.replace(/\/$/, '');
+
+ // It is possible for the path to be above the root. In this case, simply
+ // checking whether the root is a prefix of the path won't work. Instead, we
+ // need to remove components from the root one by one, until either we find
+ // a prefix that fits, or we run out of components to remove.
+ var level = 0;
+ while (aPath.indexOf(aRoot + '/') !== 0) {
+ var index = aRoot.lastIndexOf("/");
+ if (index < 0) {
+ return aPath;
+ }
+
+ // If the only part of the root that is left is the scheme (i.e. http://,
+ // file:///, etc.), one or more slashes (/), or simply nothing at all, we
+ // have exhausted all components, so the path is not relative to the root.
+ aRoot = aRoot.slice(0, index);
+ if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
+ return aPath;
+ }
+
+ ++level;
+ }
+
+ // Make sure we add a "../" for each component we removed from the root.
+ return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
+}
+exports.relative = relative;
+
+var supportsNullProto = (function () {
+ var obj = Object.create(null);
+ return !('__proto__' in obj);
+}());
+
+function identity (s) {
+ return s;
+}
+
+/**
+ * Because behavior goes wacky when you set `__proto__` on objects, we
+ * have to prefix all the strings in our set with an arbitrary character.
+ *
+ * See https://github.com/mozilla/source-map/pull/31 and
+ * https://github.com/mozilla/source-map/issues/30
+ *
+ * @param String aStr
+ */
+function toSetString(aStr) {
+ if (isProtoString(aStr)) {
+ return '$' + aStr;
+ }
+
+ return aStr;
+}
+exports.toSetString = supportsNullProto ? identity : toSetString;
+
+function fromSetString(aStr) {
+ if (isProtoString(aStr)) {
+ return aStr.slice(1);
+ }
+
+ return aStr;
+}
+exports.fromSetString = supportsNullProto ? identity : fromSetString;
+
+function isProtoString(s) {
+ if (!s) {
+ return false;
+ }
+
+ var length = s.length;
+
+ if (length < 9 /* "__proto__".length */) {
+ return false;
+ }
+
+ if (s.charCodeAt(length - 1) !== 95 /* '_' */ ||
+ s.charCodeAt(length - 2) !== 95 /* '_' */ ||
+ s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
+ s.charCodeAt(length - 4) !== 116 /* 't' */ ||
+ s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
+ s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
+ s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
+ s.charCodeAt(length - 8) !== 95 /* '_' */ ||
+ s.charCodeAt(length - 9) !== 95 /* '_' */) {
+ return false;
+ }
+
+ for (var i = length - 10; i >= 0; i--) {
+ if (s.charCodeAt(i) !== 36 /* '$' */) {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+/**
+ * Comparator between two mappings where the original positions are compared.
+ *
+ * Optionally pass in `true` as `onlyCompareGenerated` to consider two
+ * mappings with the same original source/line/column, but different generated
+ * line and column the same. Useful when searching for a mapping with a
+ * stubbed out mapping.
+ */
+function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
+ var cmp = strcmp(mappingA.source, mappingB.source);
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalLine - mappingB.originalLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalColumn - mappingB.originalColumn;
+ if (cmp !== 0 || onlyCompareOriginal) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedLine - mappingB.generatedLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByOriginalPositions = compareByOriginalPositions;
+
+function compareByOriginalPositionsNoSource(mappingA, mappingB, onlyCompareOriginal) {
+ var cmp
+
+ cmp = mappingA.originalLine - mappingB.originalLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalColumn - mappingB.originalColumn;
+ if (cmp !== 0 || onlyCompareOriginal) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedLine - mappingB.generatedLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByOriginalPositionsNoSource = compareByOriginalPositionsNoSource;
+
+/**
+ * Comparator between two mappings with deflated source and name indices where
+ * the generated positions are compared.
+ *
+ * Optionally pass in `true` as `onlyCompareGenerated` to consider two
+ * mappings with the same generated line and column, but different
+ * source/name/original line and column the same. Useful when searching for a
+ * mapping with a stubbed out mapping.
+ */
+function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
+ var cmp = mappingA.generatedLine - mappingB.generatedLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+ if (cmp !== 0 || onlyCompareGenerated) {
+ return cmp;
+ }
+
+ cmp = strcmp(mappingA.source, mappingB.source);
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalLine - mappingB.originalLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalColumn - mappingB.originalColumn;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;
+
+function compareByGeneratedPositionsDeflatedNoLine(mappingA, mappingB, onlyCompareGenerated) {
+ var cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+ if (cmp !== 0 || onlyCompareGenerated) {
+ return cmp;
+ }
+
+ cmp = strcmp(mappingA.source, mappingB.source);
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalLine - mappingB.originalLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalColumn - mappingB.originalColumn;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByGeneratedPositionsDeflatedNoLine = compareByGeneratedPositionsDeflatedNoLine;
+
+function strcmp(aStr1, aStr2) {
+ if (aStr1 === aStr2) {
+ return 0;
+ }
+
+ if (aStr1 === null) {
+ return 1; // aStr2 !== null
+ }
+
+ if (aStr2 === null) {
+ return -1; // aStr1 !== null
+ }
+
+ if (aStr1 > aStr2) {
+ return 1;
+ }
+
+ return -1;
+}
+
+/**
+ * Comparator between two mappings with inflated source and name strings where
+ * the generated positions are compared.
+ */
+function compareByGeneratedPositionsInflated(mappingA, mappingB) {
+ var cmp = mappingA.generatedLine - mappingB.generatedLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = strcmp(mappingA.source, mappingB.source);
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalLine - mappingB.originalLine;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalColumn - mappingB.originalColumn;
+ if (cmp !== 0) {
+ return cmp;
+ }
+
+ return strcmp(mappingA.name, mappingB.name);
+}
+exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;
+
+/**
+ * Strip any JSON XSSI avoidance prefix from the string (as documented
+ * in the source maps specification), and then parse the string as
+ * JSON.
+ */
+function parseSourceMapInput(str) {
+ return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''));
+}
+exports.parseSourceMapInput = parseSourceMapInput;
+
+/**
+ * Compute the URL of a source given the the source root, the source's
+ * URL, and the source map's URL.
+ */
+function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) {
+ sourceURL = sourceURL || '';
+
+ if (sourceRoot) {
+ // This follows what Chrome does.
+ if (sourceRoot[sourceRoot.length - 1] !== '/' && sourceURL[0] !== '/') {
+ sourceRoot += '/';
+ }
+ // The spec says:
+ // Line 4: An optional source root, useful for relocating source
+ // files on a server or removing repeated values in the
+ // “sources” entry. This value is prepended to the individual
+ // entries in the “source” field.
+ sourceURL = sourceRoot + sourceURL;
+ }
+
+ // Historically, SourceMapConsumer did not take the sourceMapURL as
+ // a parameter. This mode is still somewhat supported, which is why
+ // this code block is conditional. However, it's preferable to pass
+ // the source map URL to SourceMapConsumer, so that this function
+ // can implement the source URL resolution algorithm as outlined in
+ // the spec. This block is basically the equivalent of:
+ // new URL(sourceURL, sourceMapURL).toString()
+ // ... except it avoids using URL, which wasn't available in the
+ // older releases of node still supported by this library.
+ //
+ // The spec says:
+ // If the sources are not absolute URLs after prepending of the
+ // “sourceRoot”, the sources are resolved relative to the
+ // SourceMap (like resolving script src in a html document).
+ if (sourceMapURL) {
+ var parsed = urlParse(sourceMapURL);
+ if (!parsed) {
+ throw new Error("sourceMapURL could not be parsed");
+ }
+ if (parsed.path) {
+ // Strip the last path component, but keep the "/".
+ var index = parsed.path.lastIndexOf('/');
+ if (index >= 0) {
+ parsed.path = parsed.path.substring(0, index + 1);
+ }
+ }
+ sourceURL = join(urlGenerate(parsed), sourceURL);
+ }
+
+ return normalize(sourceURL);
+}
+exports.computeSourceURL = computeSourceURL;